Registering device for can-body maker



March 2 1926.

C. F. PECK REGISTERING DEVICE FOR CAN BODY MAKER Original Filed Oct. 21,192? 3 Sheets-Sheet 1 March 2 1926. 1,574,848

c. F. PEcK REGISTERING- DEVICE FOR CAN BODY MAKER Original Filed Oct.21, 1922 3 Sheets-Sheet 2 March 2 192% 1,574,848

REGISTERING DEVICE FOR CAN BODY MAKER 7 Original Filed 21, 1922 sSheetS-Sheet 5 Patented Mar. 2, 1926.

UNITED STATES 1,574,848 PATENT OFFICE.

CABL- FBEDERICK PECK, OF FAIRPORT, NEW YORK, ASSIGNOR T0 AMERICAN CANCOMPANY, OF NEW YORK, N. Y. A CORPORATION OF NEW JERSEY.

REGISTERING DEVICE FOR CAN-BODY MAKER.

Application filed October 21, 1922, Serial N 0. 595,902. Renewed July20, 1925.

To all whom it may concern:

Be it known that I, CARL FREDERICK PECK, a citizen of the United States,residing in Fairport, in the county of Monroe and State of New York,have invented a new and useful Im rovement in Registering Devices forCanody Makers, of which the following is a specification.

This invention relates primarily to machines for making can bodies andhas for a principal object the provision of an improved body edge reistering device adapted to facilitate the ormative operation and permitincreased speed and efficiency in handling the can bodies at the seamformin station.

In the ma ring of can bodies, the blanks are normally wrapped around ahorn and the edges interengaged and closed in a seam by an automatichammer, or reciprocating element. edges of the body blank, after theyhave been turned and loosely interengaged, are not in entirely accurateregistration and it has, therefore, been proposed to use a gaugingdevice associated with the hammer and acting in advance thereof to gaugethe body edges just before they are acted upon by said hammer. Thegauging devices heretofore employed for this purpose have not beencontrolled in such manner as to permit the exceptionally ra id handlingof the can bodies which as become possible with recently improvedmachinery and it is, therefore, an important object of the presentinvention to provide a gauging device which will be thoroughly effectivein action and yet will not in any manner, impede the progress of the canbodies through the machine, no matter how great the s eed attained.

Ot er objects and advantages of the invention will be apparent as it isbetter understood from the following description,

which, taken in connection with the accompanying drawings, discloses apreferred embodiment thereof.

Referring to the drawings,

Figure 1 is an end elevation, partly broken away, of a can body makingmachine in which my invention is embodied;

Fig. 2 is a vertical section taken through a porticn'of the machine atthe seam forming station and showing a body blank on the horn prior toits being gauged;

It sometimes occurs. that the Fig. 3 is a similar View showing the bodyblank edges brought to accurate registration;

Fig. 4 is an enlarged bottom plan view of the horn with a misalignedbody blank arranged thereon;

Fig. 5 is a similar view showing the blank after the action of thegauging device; and

Fig. 6 is an enlarged perspective view of the body gauging member.

The apparatus shown on the drawings, for purposes of illustration, comrises a horn 11, which is mounted in a rame 12 and which is adapted tohave the body blanks arranged thereon, by mechanism ,not

shown in detail, preparatory to the formation of a can body byinterlocking the edges of the blank. v

The blanks are advanced along the horn by feed .bars provided with dogs13, until they reach the seam closing station shown in the drawing. Itwill be understood that the edges of the blank 14 are turned, or hooked,as indicated at 15, and are arranged in overlapping relationship. Theoverlapping is accomplished by means of levers l6 and 17 which engagethe blank prior to its arrival at the seaming station and successivelyrelease the edges therefor, the means for operating these levers notbeing shown in detail since it forms no part of the invention. Uponrelease of the second edge.l5, it springs into overlapping relationshipand the blank is clamped upon the born by means of side clamps 18 and19, whereupon the horn is expanded by mechanism generally indicated at'21 to cause tight engagement between the edges. The clamps. 18 and 19are operated by means of slides 22 and 23 by power imparted from a shaft2% through the instrumentality of earns 25 and 26 acting upon rods 27and 28, which are connected by linkage (not fully shown) with levers 29and 31, which connect with the slides 22 and 23.

A hammer 32 is employed to bump the interengaged edges of the blank toclose the seam, this hammer being mounted on a pitman 33 and given areciprocating motion by an eccentric 34 on the shaft 24. In order thatthe blank edges may be brought into accurate registration prior to theblow iniparted by the hammer 32, a body gauging member is provided inthe hammer construction, being slidably mounted in a recess 36 formedbetween the body of the hammer and the facing plate 37, which is securedto the end of the hammer. Said gauging member is held in place by a bolt38, which extends through a slot 39 in said member 35, thus permittingrelative movement of the gaugin member with respect to the hammer. aidgauging member 35 is normally held in extended position by means of aplunger 40 disposed in an angular recess 41 in the hammer and forcedoutwardly by a s ring 42 seated in said recess. It will be observedthat, on the upward stroke of the hammer, the member 35 comes in contactwith the horn in advance of the hammer and is forced inwardly againstthe tension of the spring 42. The inner edge of the facing plate 37 isbeveled, as indicated at 43, and the member 35 has a beveled shoulder 44resting upon the surface 43 so that the upper end of said member ismoved longitudinally of the horn and against the end of the blank,bringing the edges 15 into registration, the opposite end of the blankbeyond each edge being forced against stops 45 and 46. A top clampingdevice is actuated at the proper time to assist in holding a blank inproper position on the horn.

The registering device 35, when brought to the position shown in Fig. 3,by the upward stroke of the hammer, is practically flush with the uppersurface of said hammer.

- upper end of a lever 48 which is pivoted at 49 on said plate 37- A pin51 is disposed through the legs of the member 35 and is adapted to beengaged by the inner end of the pin 47, which is cut away as indicatedin Figs. 2 and 3. Upon the frame of the machine, there is provided a cam52 and the lower end of the lever 48 is beveled at 53 to permit inwardmovement of the pin 47, under the influence of a spring 54 acting uponthe lever 48, when the hammer has reached its upper position. In thismanner, the registering member 35 is engaged and held in its retractedposition during the initial withdrawing movement of the hammer. Theposition of the beveled surface 53 on the lever 48 is such that saidlever is the hammer has descended a considerable distance from the horn,so that the rogress of the blank is in no way impeded.

It is thought that the invention and many of its attendant advantageswill be understood from the foregoing description, and it will beapparent that various changes may be made in the form, construction andarrangement of the parts without departing from the spirit and scope ofthe invention, or sacrificingall of its material advantages, the formhereinbefore described being merely a preferred embodiment thereof.

I claim:

1. In a machine for making can bodies, a horn upon which the bodies areformed, a seam closing hammer, means associated with the hammer forcausing registration of the body blank edges prior to the action of thehammer, and means for holding said lastmentioned means out of the pathof the can body during initial retracting movement of the hammer.

2. In a machine for making can bodies, the combination of a horn aboutwhich the body blanks are wrapped, a reciprocating element for closingthe overlapping ed es of the blank in a seam, means extended eyond saidelement and movable inwardly and transversely with respect thereto uponcontact with the horn to bring the overlapping edges into accurateregistration, and devices for holding said means in inward positiondurin initial retraction of said element from the horn.

. 3. In a machine'for making can bodies. the combination of a horn u nwhich the bodies are formed, a seamc osing hammer movable radially ofthehorn, a gen associated with the hammer and norma 1y disposed inadvance thereof for causing accu rate' registration of the overlap ingbody blank edges prior to the action 0 the haminer, sa1d gauge beingyieldable upon com- 1ng into contact with the horn and movablelongitudinally thereof, and means for engaging and holding said gauge inretracted osition duringt ammer away om the horn.

4. In a machine for making can bodies.

the combination of a horn about which the body blanks are wrapped, areciprocating element for closing the edges of the blanks in a seam, agauge for causing registration of the blank edges prior to the action ofsaid reciprocating element, and means for holding said gauge out of thepath of the. blanks during initial retracting movement of the element,said means com prising amember normally disengaged from said gauge andadapted to be rojected into holding engagement therewith on the upwardstroke of said reciprocating element and remaining in such engagementduring initial withdrawing movement thereof.

5. The combination with a horn and a initial movement of thereciprocating member movable toward and from the horn for uniting theedges of sheet metal arranged thereon, of a gauge for causingregistration of the'edges of the sheet metal, and means for holding saidgauge in unobstructing position during initial movement of said memberaway from the horn.

6. In a machine for making can bodies, the combination of a forminghorn, means for overlapping the edges of the body blank upon said horn,a hammer for closing said edges in a seam, a normally extended gauge onthe hammer for bringing the blank edges into accurate registrationbefore seaming, and means for holding said gauge in retracted positionas the hammer is withdrawn from the horn.

7. In a machine for making can bodies, the combination of a forminghorn, a reciprocating element for closin a seam in the body blank edgesupon said born, a retractable gauge movable with said element, and meansfor holding said gauge in retracted position as the element is withdrawnfrom the horn.

8. In a machine for making can bodies, the combination of a horn aboutwhich the in a seam, a gauge body blanks are wrapped, it reci rocatingelement for closing the edges of t e blanks for causing registration ofthe blank edges prior to the action of said reciprocating element, andmeans for holding said gauge out of. the path of the blanks duringinitial retracting movement of the element, said means comprising aholding member spring-pressed into effective position upon the upwardstroke of said element, and a cam device for with drawing said memberfrom such engagement only after predetermined withdrawing movement 0said reciprocating element.

9. In a machine for making can bodies, the combination of a horn uponwhich the body blanks are formed, a reciprocating seam closing hammer, aspring-pressed gauge member disposed in a recess in said hammer andadapted to recede upon contact with the horn, a cam member acting uponthe receding gauge to cause longitudinal movement thereof on the horn,and a hold-down device adapted to prevent projection of the gauge duringinitial retracting movement of the hammer:

CARL FREDERICK PECK.

